BOSU basics with Bob and Brad (physical therapists)

The BOSU was the first piece of exercise equipment I bought for home use when doing knee rehab.  Starting using it the first PT appointment.  This 2017 video is an introduction by Bob and Brad, the "most famous" physical therapists on the Internet, of simple balance exercises using the BOSU.  They demonstrate progressions from easy to hard using the BOSU flat side up and flat side down.

BOSU Ball: 10 Best Balance Exercises for Athlete and Post Rehabilitation

https://youtu.be/m4v3jdAEK4k, 11 min